Optimistic Concurrency in ADO .Net

"Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information."

protected void Button1_Click(object sender, EventArgs e)
{
    string _connStr = ConfigurationManager.ConnectionStrings["practiceConnectionString"].ConnectionString;
    SqlConnection conn = new SqlConnection(_connStr);
    conn.Open();
    SqlCommand cmd = new SqlCommand("select * from PersonalDetail where id=3", conn);
    DataSet objDataset = new DataSet();
    SqlDataAdapter da = new SqlDataAdapter(cmd);
    da.Fill(objDataset);
    SqlCommandBuilder objCommandBuilder = new SqlCommandBuilder(da);
    da.UpdateCommand = objCommandBuilder.GetUpdateCommand();
    objDataset.Tables[0].Rows[0][1] = "sashibhusan";
    da.Update(objDataset);
    conn.Close();
}